Welding residual stress effect of the fatigue strength at dissimilar material weld between Alloy617 and 12Cr steel

摘要

In this study, dissimilar material welding between Alloy617 and 12Cr steel was performed using buttering welding technology on to the 12Cr steel side. Then, the welding residual stress of dissimilar material weld was analyzed by the numerical method and the experimental method, after that, the stress amplitude including the welding residual stress was calculated using a modified Goodman equation.